The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 30, 2020
Filed:
Oct. 26, 2018
Applicants:
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Inventor:
Choo Saeng Choi, Seongnam-si, KR;
Assignees:
HYUNDAI MOTOR COMPANY, Seoul, KR;
KIA MOTORS CORPORATION, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 1/00 (2006.01); F02M 25/08 (2006.01); F02D 41/00 (2006.01);
U.S. Cl.
CPC ...
F02M 25/0827 (2013.01); F02M 25/089 (2013.01); F02M 25/0818 (2013.01); F02M 25/0836 (2013.01); F02M 25/0854 (2013.01); F02M 25/0872 (2013.01); F02D 41/0032 (2013.01);
Abstract
A method for diagnosing a purge valve of a canister purge system includes (a) determining whether a purge valve, which is installed on a purge pipe connecting a canister with an intake system of an engine, is open and whether a purge pump is running, wherein the purge pump is configured to pump evaporative emission captured in the canister toward the intake system, and (b) determining whether the purge valve is in a close stuck state, based on upstream pressure and downstream pressure of the purge pump, when the purge valve is open while the purge pump is running.